stainless steel seamless tube: TP304/L,TP316/L, TP316Ti, TP321,TP310S,etc. ASTM, GOST, JIS, DIN, etc. stainless steel seamless tube: JXC, founded in 1996, is an ... experienced company specializing in manufacturing and exporting Seamless stainless steel pipes and tubes. (1) Grades : 304/304L, 316/316L, 321 ...